CVE-2025-24636
📋 TL;DR
This CSRF vulnerability in MachForm Shortcode WordPress plugin allows attackers to trick authenticated administrators into executing malicious actions, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in victims' browsers when viewing compromised pages. WordPress sites using MachForm Shortcode versions up to 1.4.1 are affected.
💻 Affected Systems
- MachForm Shortcode WordPress Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could inject persistent malicious scripts that steal administrator credentials, hijack sessions, deface websites, or redirect users to malicious sites whenever vulnerable pages are viewed.
Likely Case
Attackers create fake forms or modify legitimate forms to capture sensitive user data, inject ads, or redirect users to phishing pages.
If Mitigated
With proper CSRF tokens and input validation, the attack vector is blocked, preventing unauthorized form submissions and script injection.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated users. No public exploit code available at time of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.4.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find MachForm Shortcode plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin until patch is released.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd CSRF tokens to all form submissions and AJAX requests in the plugin code
Input Validation and Sanitization
allImplement strict input validation and output encoding for all user-controllable data
🧯 If You Can't Patch
- Disable or remove MachForm Shortcode plugin immediately
- Implement web application firewall (WAF) rules to block suspicious form submissions and XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for MachForm Shortcode version. If version is 1.4.1 or earlier, you are vulnerable.Check Version:
wp plugin list --name=machform-shortcode --field=versionVerify Fix Applied:
After updating, verify plugin version is higher than 1.4.1. Test form submissions with CSRF tokens present.📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions from unexpected referrers
- Multiple failed form submissions with suspicious payloads
- Administrator accounts performing unexpected plugin modifications
Network Indicators:
- HTTP requests with suspicious parameters containing script tags or JavaScript code
- Form submissions without proper referrer headers or CSRF tokens
SIEM Query:
source="wordpress.log" AND ("machform" OR "shortcode") AND ("script" OR "javascript" OR "onload" OR "onerror")